Assisting the automation
industry since 1986
User manual
WEIGHT METER
SWI-94
•Input type: load cells
•Calibration using theoretical characteristic or real load
Read the user's manual carefully before starting to use the unit or software.
Producer reserves the right to implement changes without prior notice.
2018.12.18 SWI-94_INSSXEN_v.2.12.001
User manual - WEIGHT METER SWI-94
CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY.......................................................................................3
2. GENERAL CHARACTERISTICS...............................................................................................................4
3. TECHNICAL DATA....................................................................................................................................4
4. DEVICE INSTALLATION...........................................................................................................................6
4.1. UNPACKING.....................................................................................................................................7
4.2. ASSEMBLY.......................................................................................................................................7
4.3. CONNECTION METHOD...............................................................................................................11
4.4. MAINTENANCE..............................................................................................................................20
5. FRONT PANEL DESCRIPTION .............................................................................................................21
6. PRINCIPLE OF OPERATION..................................................................................................................22
6.1. MEASUREMENT MODE................................................................................................................22
6.2. DETECTION OF THE PEAK VALUES...........................................................................................23
6.3. CONTROL OF THE RELAY OUTPUTS.........................................................................................24
6.3.1. One threshold mode..............................................................................................................25
6.3.2. Two thresholds mode............................................................................................................26
7. DEVICE PROGRAMMING.......................................................................................................................27
7.1. PROGRAMMING MENU.................................................................................................................27
7.2. PARAMETERS EDITION................................................................................................................28
7.2.1. Numeric parameters (digit change mode).............................................................................28
7.2.2. Numeric parameters (slide change mode)............................................................................28
7.2.3. Switch parameters (“LIST” type)............................................................................................29
7.3. MENU DESCRIPTION....................................................................................................................29
7.3.1. “rELAy1” menu.......................................................................................................................29
7.3.2. “bEEPEr” menu......................................................................................................................32
7.3.3. “CALibr” menu........................................................................................................................32
7.3.4. ”OutPUt” menu.......................................................................................................................34
7.3.5. ”button” menu.........................................................................................................................36
7.3.6. ”Pr inP” parameter.................................................................................................................37
7.3.7. ”HOLd” menu.........................................................................................................................37
7.3.8. ”briGHt” parameter.................................................................................................................37
7.3.9. ”SECUr” menu.......................................................................................................................38
7.3.10. ”rS-485” menu......................................................................................................................38
7.3.11. ”Edit t” parameter.................................................................................................................39
7.3.12. ”dEFS” parameter................................................................................................................39
7.3.13. ”SErv” menu.........................................................................................................................39
7.4. MENU STRUCTURE.......................................................................................................................40
8. OUTPUT VALUE CALCULATION...........................................................................................................42
9. SIGNALISATION OF ERRORS...............................................................................................................42
10. THE MODBUS PROTOCOL HANDLING..............................................................................................43
10.1. LIST OF REGISTERS...................................................................................................................43
10.2. TRANSMISSION ERRORS DESCRIPTION................................................................................48
10.3. EXAMPLES OF QUERY/ANSWER FRAMES.............................................................................48
11. DEFAULT AND USER'S SETTINGS LIST............................................................................................51
2
User manual - WEIGHT METER SWI-94
Explanation of symbols used in the manual:
- This symbol denotes especially important guidelines concerning the installation and
operation of the device. Not complying with the guidelines denoted by this symbol
may cause an accident, damage or equipment destruction.
IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.
- This symbol denotes especially important characteristics of the unit.
Read any information regarding this symbol carefully
1. BASIC REQUIREMENTS AND USER SAFETY
-
- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- GND input of device should be connected to PE wire;
- The unit must be properly set-up, according to the application. Incorrect
configuration can cause defective operation, which can lead to unit damage or
an accident.
-
-
- Neighbouring and connected equipment must meet the appropriate standards
and regulations concerning safety and be equipped with adequate overvoltage
and interference filters.
-
- In order to minimize fire or electric shock hazard, the unit must be protected
against atmospheric precipitation and excessive humidity.
- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
3
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User manual - WEIGHT METER SWI-94
- Do not use the unit in areas where there is risk of explosions.
- Do not use the unit in areas with significant temperature variations, exposure to
condensation or ice.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).
2. GENERAL CHARACTERISTICS
Weight meter !"#$ is designed for cooperation with load cells (strain gages) in
application not required to be approved. Device is equipped with push-buttons allow easy
setting of tare and zero, and also switching between nett and gross indications. Measured
weight is displayed on 6-digit readable LED display. The device can be equipped with two
relay outputs or two OC-type outputs and one of following: active current output, passive
isolated current output, active voltage output, which allow to use as controller for simple
systems with batching function. Build in analogue output and RS-485 interface enable remote
controlling of the device by a host system if required. The device software allows to use two
calibration methods: data sheet calibration, or dead weight calibration. All critical states of the
device are signalised by proper error messages.
3. TECHNICAL DATA
Power supply voltage
(depending on version)
External fuse (required)
Power consumption
85...%&'...260V AC/DC; 50 ÷ 60 Hz (separated)
or 19...%$...50V DC; 16...%$...35V AC (separated)
T - type, max. 2 A
max. 4.5 VA @ 85 ÷ 260V AC/DC
max. 4.5 VA @ 16V ÷ 35V AC
max. 4.5 W @ 19V ÷ 50V DC
( tensometer, programmable sensitivity selectable up to
2 mV/V or 4 mV/V
Load cells power supply 4.6 V ± 10%, Imax ~ 60 mA
Load cells connections 6-wire technique, min. resultant impedance of 80 W
(e.g. 4 load cells 320 W)
Max. display divisions 10 000 d
Tare range 100% of selected measurement range
4
!
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User manual - WEIGHT METER SWI-94
) separated
Low level 0V ÷ 1V
High level 10V ÷ 30V (about 5.5mA @ 24V)
24V +5%, -10% / max. 100 mA, stabilized
* 0 or 2 NO 1A/250V AC (cos j = 1)
+," 0 or 2; 30mA / 30VDC / 100mW
-
(optional)
range max. 0 ÷ 24 mA
Load resistance max. 700 W
)
(optional)
range max. 2.8 ÷ 24 mA
Supply voltage Us = 9.5 ÷ 36V
Load resistance max. (Us – 9.5V) / 24mA [kW]
-
(optional)
range max. 0 ÷ 11V
Load resistance min. 2000 W
Display range -99999 ÷ 999999, plus decimal point
Communication interface RS 485, 8N1 and 8N2, Modbus RTU, not separated
Baud rate 1200 bit/s ÷ 115200 bit/s
Display LED, 6 digit, 13mm height, red
Data memory non-volatile memory, EEPROM type
Protection level IP 65
optional version with panel cut-out sealing available
Terminals protection IP 20
5
User manual - WEIGHT METER SWI-94
Housing type
Housing material
Housing dimensions
Mounting hole
Assembly depth
Panel thickness
panel
NORYL - GFN2S E1
96 x 48 x 100 mm
90.5 x 43 mm
102 mm
max. 5 mm
Operating temperature
(depending on version)
0°C to +50°C
or -20°C to +50°C
Storage temperature
(depending on version)
-10°C to +70°C
or -20°C to +70°C
Humidity
Altitude
5 to 90% no condensation
up to 2000 meters above sea level
Screws tightening max. torque 0.5 Nm
Max. connection leads diameter 2.5 mm2
Safety requirements according to: PN-EN 61010-1
installation category: II
pollution degree: 2
voltage in relation to ground: 300V AC
insulation resistance: >20MW
insulation strength between power supply and
input/output terminal: 1min. @ 2300V
insulation strength between relays terminal:
1min. @ 1350V
EMC according to: PN-EN 61326-1
.
.
4. DEVICE INSTALLATION
The unit has been designed and manufactured in a way assuring a high level of user
safety and resistance to interference occurring in a typical industrial environment. In order to
take full advantage of these characteristics installation of the unit must be conducted correctly
and according to the local regulations.
- Read the basic safety requirements on page & prior to starting the installation.
- Ensure that the power supply network voltage corresponds to the nominal
voltage stated on the unit’s identification label.
- The load must correspond to the requirements listed in the technical data.
- All installation works must be conducted with a disconnected power supply.
- Protecting the power supply clamps against unauthorized persons must be
taken into consideration.
6
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User manual - WEIGHT METER SWI-94
4.1. UNPACKING
After removing the unit from the protective packaging, check for transportation damage. Any
transportation damage must be immediately reported to the carrier. Also, write down the unit
serial number on the housing and report the damage to the manufacturer.
Attached with the unit please find:
- user’s manual,
- warranty,
- assembly brackets - 2 pieces.
4.2. ASSEMBLY
- The unit is designed for mounting inside housings (control panel, switchboard)
insuring appropriate protection against surges and interference. Metal housings
must be connected to ground in a way that complies with the governing
regulations.
- Disconnect the power supply prior to starting assembly.
- Check the connections are wired correctly prior to switching the unit on.
In order to install the unit, a 90.5 x 43 mm mounting hole (/$0,$1) must be
prepared. The thickness of the material of which the panel is made must not
exceed 5mm. When preparing the mounting hole take the grooves for catches
located on both sides of the housing into consideration (/$0,$1). Place the
unit in the mounting hole inserting it from the front side of the panel, and then fix it
using the brackets (/$&). The minimum distances between the centre points
of multiple units - due to the thermal and mechanical conditions of operation - are
115 mm x 67mm (/$%).
Figure 4.1. Recommended mounting hole dimensions
7
!
!
90,5 mm
13 mm
8 mm
8 mm
13 mm
1 mm max. 5 mm
43 mm
1 mm
User manual - WEIGHT METER SWI-94
- The unit is designed for mounting inside housings (control panel, switchboard)
insuring appropriate protection against surges and interference. Metal housings
must be connected to ground in a way that complies with the governing
regulations.
- Disconnect the power supply prior to starting assembly.
- Check the connections are wired correctly prior to switching the unit on.
In order to install the unit, a 90.5 x 43 mm mounting hole (/$2,$1) must be
prepared. The thickness of the material of which the panel is made must not
exceed 5mm. When preparing the mounting hole take the grooves for catches
located on both sides of the housing into consideration (/$2,$1). Place the
unit in the mounting hole inserting it from the front side of the panel, and then fix it
using the brackets (/$3). The minimum distances between the centre points
of multiple units - due to the thermal and mechanical conditions of operation - are
115 mm x 67mm (/$4).
Figure 4.5. Recommended mounting hole dimensions
9
!
!
90,5 mm
13 mm
8 mm
8 mm
13 mm
1 mm max. 5 mm
43 mm
1 mm
User manual - WEIGHT METER SWI-94
4.3. CONNECTION METHOD
Caution
- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit is not equipped with an internal fuse or power supply circuit breaker.
Because of this an external time-delay cut-out fuse with minimal possible nominal
current value must be used (recommended bipolar, max. 2A) and a power supply
circuit-breaker located near the unit. In the case of using a monopolar fuse it must
be mounted on the phase cable (L).
- The power supply network cable diameter must be selected in such a way that in
the case of a short circuit of the cable from the side of the unit the cable shall be
protected against destruction with an electrical installation fuse.
- Wiring must meet appropriate standards and local regulations and laws.
- In order to secure against accidental short circuit the connection cables must be
terminated with appropriate insulated cable tips.
- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.
Loose screws can cause fire or defective operation. Over tightening can lead to
damaging the connections inside the units and breaking the thread.
- In the case of the unit being fitted with separable clamps they should be inserted
into appropriate connectors in the unit, even if they are not used for any
connections.
"5
.
- If the unit is equipped with housing, covers and sealing packing, protecting
against water intrusion, pay special attention to their correct tightening or clamping.
In the case of any doubt consider using additional preventive measures (covers,
roofing, seals, etc.). Carelessly executed assembly can increase the risk of electric
shock.
- After the installation is completed do not touch the unit’s connections when it is
switched on, because it carries the risk of electrical shock.
–Avoid common (parallel) leading of signal cables and transmission cables together with
power supply cables and cables controlling induction loads (e.g. contactors). Such cables
should cross at a right angle.
–Contactor coils and induction loads should be equipped with anti-interference protection
systems, e.g. RC-type.
11
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User manual - WEIGHT METER SWI-94
–Use of screened signal cables is recommended. Signal cable screens should be
connected to the earthing only at one of the ends of the screened cable.
–In the case of magnetically induced interference the use of twisted couples of signal
cables (so-called “spirals”) is recommended. The spiral (best if shielded) must be used
with RS-485 serial transmission connections.
–In the case of measurement or control signals are longer than 30m or go outside of the
building then additional safety circuits are required.
–In the case of interference from the power supply side the use of appropriate anti-
interference filters is recommended. Bear in mind that the connection between the filter
and the unit should be as short as possible and the metal housing of the filter must be
connected to the earthing with largest possible surface. The cables connected to the filter
output must not run in parallel with cables with interference (e.g. circuits controlling relays
or contactors).
Connections of power supply voltage and measurement signals are executed using the
screw connections on the back of the unit’s housing.
Figure 4.9. Method of cable insulation replacing and cable terminals
-6
12
!
6-7 mm
max. 2 mm
User manual - WEIGHT METER SWI-94
Notes related to connection of strain bridges:
- Installation should be made according to local safety and electromagnetic
compatibility regulations. While installation pay special attention to:
- use of shielded wires,
- shield of wires should be connected with metal housing using a conductive
glands or metal clamp to ensure proper electrical contact.
- shielded wires should be mounted as close metal case of the device (e.g.
connection box) as possible, and as far from disturbing wires (e.g. powering
motors) as possible.
Figure 4.10. Terminals description (relay and active current outputs)
Figure 4.11. Terminals description (relay and passive current outputs)
13
!
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
*0
*%
(polarity
doesn't matter)
"7
ACTIVE
current output
)
(depending on version)
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
*0
*%
(polarity
doesn't matter)
)
(depending on version)
)
,
$=%'-
User manual - WEIGHT METER SWI-94
Figure 4.12. Terminals description (relay and active voltage outputs)
Figure 4.13. Terminals description (OC-type and active current outputs)
Figure 4.14. Terminals description (OC-type and passive current outputs)
14
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
*0
*%
(polarity
doesn't matter)
"7
ACTIVE
voltage output
)
(depending on version)
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
(polarity
doesn't matter) ;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
+,0=+,%> Umax = 30V DC,
Imax = 30mA, Pmax = 100mW
+,%
7"
+,0
"7
)
(depending on version) "7
ACTIVE
current output
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
(polarity
doesn't matter) ;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
+,0=+,%> Umax = 30V DC,
Imax = 30mA, Pmax = 100mW
+,%
7"
+,0
"7
)
(depending on version)
)
,
$=%'-
User manual - WEIGHT METER SWI-94
Figure 4.15. Terminals description (OC-type and active voltage outputs)
Depending on version:
85...230...260V AC/DC or
19...24...50V DC; 16...24...35V AC
Figure 4.16. Connection of power supply and relays
, . !
.
$3/?%2'8-,
0''*?2!
.
15
!
/5 ;
0 %
@:
@:
0' 00 0% 0&
/5 ;
*0 *%
0 % 2 1 3 4 #
&' &0 &% && &$0' 00 0% 0& 0$ 02
& $
&2
7%$8 +5%, -10%
Imax = 100mA
75"9:
* "$42
--7
--"
(polarity
doesn't matter) ;<,7
;: ;7
9:7 ;: ;"
9:" ;<,"
+,0=+,%> Umax = 30V DC,
Imax = 30mA, Pmax = 100mW
+,%
7"
+,0
"7
)
(depending on version) "7
ACTIVE
voltage output
User manual - WEIGHT METER SWI-94
a) b)
Figure 4.17. Examples of suppression circuit connection:
a) to relay terminals; b) to the inductive load
Figure 4.18. Example of OC-type outputs connection
Figure 4.19. Example of active current outputs connection
(for device with active current output only)
16
!
:
0' 00 0' 00
@@
:
!
2 1
0' 00
+
voltage input
24 V
-
Logic controller
"7
+,0
7"
5
2 1
0' 00
"7
+,0
7"
5
*
%%
@;0'-
+
current input
0-20 mA
-
Logic controller
& $
"7
-,8;
User manual - WEIGHT METER SWI-94
Figure 4.20. Example of passive current outputs connection
(for device with passive current output only)
Figure 4.21. Example of active voltage outputs connection
(for device with active voltage output only)
17
"7
current input
4-20 mA
Logic controller
& $ 2 1
)- 8;
5
7"
!
+
voltage input
0 - 10V
-
Logic controller
& $
"7
-,8;
User manual - WEIGHT METER SWI-94
Rys. 4.22. Example of 6-wire load cell connection.
Rys. 4.23. Example of 4-wire load cell connection.
18
;<,7
9:"
9:7
;<," load cell
transducer
&' &0 &% && &$ &2
;: ;"
;: ;7
3
A;@
:+;> :3
);
(;-@A+5 :9
;<,7
9:"
9:7
;<,"
load cell
transducer
&' &0 &% && &2
3
&$
A;@
(;-@A+5 :9
:+;> :3
);
User manual - WEIGHT METER SWI-94
Rys. 4.24. Example of several 4-wire load cells connection using junction box.
19
9:"
;<,"
;<,7
A;@
9:7
9:"
;<,"
;<,7
load cell
transducer
A;@
9:7
load cell
transducer
&'
&0
&%
&&
&2
&$
;<,7
9:"
9:7
;<,"
;: ;"
;: ;7
39:
!"#$
EXC+
SENSE+ SENSE+
EXC-
SENSE-
SIGN+
SIGN-
SHIELD
SENSE-
SHIELD
EXC+
SENSE+
EXC-
SENSE-
SIGN+
SIGN-
SHIELD
EXC+
EXC-
SIGN+
SIGN-
B5:,+:C+</+*@+-,;@@
Trans. 1Trans. 4 (6)
User manual - WEIGHT METER SWI-94
Rys. 4.25. Example of several 6-wire load cells connection using junction box.
4.4. MAINTENANCE
The unit does not have any internal replaceable or adjustable components available to
the user. Pay attention to the ambient temperature in the room where the unit is operating.
Excessively high temperatures cause faster ageing of the internal components and shorten
the fault-free time of unit operation.
In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water
with small amount of detergent or in the case of more significant contamination ethyl or
isopropyl alcohol.
Using any other agents can cause permanent damage to the housing.
Product marked with this symbol should not be placed in municipal waste. Please
check local regulations for disposal and electronic products.
20
!
9:"
;<,"
;: ;"
;<,7
A;@
9:7
9:"
;<,"
;: ;"
;<,7
load cell
transducer
A;@
9:7
load cell
transducer
;: ;7
;: ;7
&'
&0
&%
&&
&2
&$
;<,7
9:"
9:7
;<,"
;: ;"
;: ;7
39:
!"#$
EXC+
SENSE+
EXC+
SENSE+
EXC-
SENSE -
SIGN+
SIGN-
SHIELD
EXC-
SENSE-
SIGN+
SIGN-
SHIELD
EXC+
SENSE+
EXC-
SENSE-
SIGN+
SIGN-
SHIELD
Trans. 1
Trans. 4 (6)
B5:,+:C+</+*@+-,;@@
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